Patterned storage medium
AssigneeHGST Netherlands B.V.
InventorKurt A. Rubin
Life of this patent
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Abstract
According to one embodiment, a patterned medium is disclosed herein. The patterned medium includes a patterned layer, a stop layer, and a fill layer. The patterned layer includes plurality of grooves. The stop layer is positioned on the patterned layer. The stop layer is at least partially positioned within the plurality of grooves and a portion of the stop layer may be positioned on walls of the grooves of the patterned layer. The fill layer is at least partially positioned within the grooves between portions of the stop layer. The stop layer substantially separates the fill layer from the patterned layer.
Claims29
A patterned medium comprising:
- a patterned layer comprising a plurality of grooves;
- a stop layer disposed on the patterned layer, the stop layer at least partially disposed within the plurality of grooves, a portion of the stop layer disposed on walls of the grooves of the patterned layer;
- a fill layer at least partially disposed within the grooves between portions of the stop layer, the stop layer substantially separating the fill layer from the patterned layer.
A method for fabricating a magnetic storage medium comprising:
- depositing a stop layer directly onto a patterned magnetic layer, the patterned magnetic layer comprising one or more grooves such that at least a portion of the stop layer is positioned within the one or more grooves;
- depositing a fill layer directly onto the deposited stop layer, at least a portion of the fill layer being positioned within the one or more grooves;
- and
- planarizing the fill layer substantially down to the stop layer using a wet etching technique.
A magnetic disk drive system comprising:
- a controller module;
- a suspension arm;
- a read/write head;
- and
- a magnetic storage disk comprising
- a patterned magnetic layer comprising a plurality of magnetic regions and non-magnetic regions, the magnetic regions being laterally adjacent the non-magnetic region,
- a stop layer disposed between the magnetic regions and the non-magnetic regions, the stop layer substantially separating the non-magnetic regions from the magnetic regions, and
- a lubrication layer at least partially disposed on the stop layer, wherein the distance between the magnetic layer and the lubrication layer is no more than about 3 nm.
A patterned medium comprising:
- a patterned layer comprising a plurality of grooves;
- a stop layer disposed on the patterned layer, the stop layer at least partially disposed within the plurality of grooves, a portion of the stop layer disposed on walls of the grooves of the patterned layer;
- a fill layer at least partially disposed within the grooves between portions of the stop layer, the stop layer substantially separating the fill layer from the patterned layer, wherein the fill layer is made from one of,
- a material comprising titanium and nitrogen,
- a material comprising tantalum and nitrogen, and
- a material comprising titanium, tantalum, and nitrogen.
Dependencies are inferred from the claim text.